A tank held 850 gallons at the start of the week. Crews drew 275 gallons on Monday and 190 gallons on Tuesday. How much remains?

Correct answer to question 23 (Arithmetic Reasoning): 385 gallons

Method

Subtract both withdrawals from the starting amount. Together the crews drew 275 + 190 = 465 gallons, and 850 - 465 leaves 385 gallons in the tank.